Backwash filter for heat supply engineering

Abstract

The utility model discloses a backwashing filter for heat supply engineering, and particularly relates to the technical field of filters, the backwashing filter comprises a filter cartridge, a water inlet pipe is fixedly mounted on one side of the outer surface of the filter cartridge, a water outlet pipe is fixedly mounted on the other side of the outer surface of the filter cartridge, and a movable base is arranged on the outer bottom surface of the filter cartridge. Mounting rods are fixedly mounted on the two sides of the outer surface of the movable base, movable cavities are formed in the mounting rods, and sliding rods are fixedly mounted in the movable cavities. According to the backwash filter for the heat supply engineering, in actual work, when the movable base is inserted into the filter cartridge, a mounting rod can be inserted into a fixed sleeve, a threaded rod is rotated to push a lifting plate to descend, two limiting frames can be pushed to move towards the outside of a movable cavity, and a first spring is extruded; the mounting rod can be prevented from falling off from the fixing sleeve by rotating the mounting rod, and the filter screen can be separated from the movable base by rotating the filter screen, so that the filter screen is convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a backwashing filter for heating engineering. Background Art

[0002] In the process of heating, the heating project needs to transmit water. In the process of transmission, the water needs to be filtered, so a filter is needed. The filter used in the existing heating project is a backwash filter, which uses backwashing to facilitate the cleaning of the filter.

[0003] After searching, for example, the utility model with application number 202221300176.5 discloses a backwash filter for heating projects, including a filter cartridge, the tail end of the filter cartridge is fixedly connected to a sewage pipe, the tail end of the sewage pipe is detachably fixedly installed with an end plate, and a water pressure sensor is fixedly installed on one side wall of the sewage pipe; a filter screen is fixedly installed at the bottom of the inner cavity of the filter cartridge, and the filter screen has a certain service life. After a period of use, it needs to be replaced, but the utility model is not convenient for replacing the filter screen. Therefore, in order to solve the above defects, the inventor proposes a backwash filter for heating projects. Utility Model Content

[0004] The main purpose of the utility model is to provide a backwash filter for a heating project, which can effectively solve the problem of inconvenience in replacing the filter screen.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A backwash filter for a heating project comprises a filter cartridge, a water inlet pipe is fixedly mounted on one side of the outer surface of the filter cartridge, a water outlet pipe is fixedly mounted on the other side of the outer surface of the filter cartridge, a movable base is provided on the outer bottom surface of the filter cartridge, mounting rods are fixedly mounted on both sides of the outer surface of the movable base, fixing sleeves are fixedly mounted on both sides of the outer surface of the filter cartridge, a sewage pipe is fixedly mounted on the bottom surface of the movable base, an external pipe is fixedly mounted on one side of the outer surface of the filter cartridge, and a filter screen is provided on the top surface of the movable base;

[0007] An active cavity is provided inside the mounting rod, a sliding rod is fixedly installed inside the active cavity, both sides of the outer surface of the sliding rod are movably connected to the limit frames, first springs are fixedly installed on both sides of the active cavity, and the two first springs are respectively fixedly connected to the two limit frames, a driving plate is fixedly installed on one side of the two limit frames, a threaded rod is movably connected to the outer top surface of the active cavity, and a lifting plate is movably connected to the bottom surface of the threaded rod;

[0008] The top surface of the movable base is provided with a mounting groove, and the bottom surface of the filter screen is fixedly provided with a mounting plate.

[0009] Preferably, both the outer surface of the mounting plate and the interior of the mounting groove are provided with threads.

[0010] Preferably, a lifting rod is fixedly mounted on the outer top surface of the filter cartridge, a baffle is fixedly mounted on the top surface of the lifting rod, a rack is movably connected to the outer surface of the lifting rod, and a second spring is fixedly connected between the rack and the baffle, a motor is fixedly mounted on the outer top surface of the filter cartridge, and a sector gear is fixedly mounted on the output end of the motor, a connecting rod is fixedly mounted on one side of the rack, and a scraper ring is provided on the bottom surface of the connecting rod.

[0011] Preferably, the external tube extends into the interior of the filter cartridge, and a nozzle is fixedly mounted along one end of the external tube to the interior of the filter cartridge.

[0012] Preferably, a connecting plate is fixedly mounted on the bottom surface of the connecting rod, and a plurality of connecting holes are provided on the top surface of the connecting plate. A connecting groove is provided on the top surface of the scraper ring, and a plurality of fixing holes are provided inside the connecting groove.

[0013] Preferably, the size of the connecting plate is the same as the size of the connecting groove, and the size of the connecting hole is the same as the size of the fixing hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a backwash filter for a heating project. By arranging a movable base, in actual work, when the movable base is inserted into a filter cartridge, a mounting rod can be inserted into a fixed sleeve, and the threaded rod is rotated to push a lifting plate to descend, so that two limit frames can be pushed to move to the outside of the movable cavity and a first spring can be squeezed to prevent the mounting rod from falling off the fixed sleeve, and the filter screen can be rotated to separate it from the movable base, thereby facilitating the disassembly of the filter screen for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the active cavity of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the movable base of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the filter cartridge of the utility model;

[0020] Figure 5 This is a schematic diagram of the scraper ring structure of the utility model.

[0021] In the figure: 1. filter cartridge; 2. water inlet pipe; 3. water outlet pipe; 4. movable base; 5. mounting rod; 6. fixing sleeve; 7. sewage pipe; 8. external pipe; 501. movable chamber; 502. sliding rod; 503. limiting frame; 504. driving plate; 505. first spring; 506. threaded rod; 507. lifting plate; 401. filter screen; 402. mounting groove; 403. mounting plate; 101. lifting rod; 102. rack; 103. baffle; 104. second spring; 105. motor; 106. sector gear; 107. connecting rod; 108. scraper ring; 801. nozzle; 1071. connecting plate; 1072. connecting hole; 1081. connecting groove; 1082. fixing hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] The utility model discloses a backwash filter for heating engineering, such as Figure 1-5 As shown, it includes a filter cartridge 1 , and a water inlet pipe 2 is fixedly installed on one side of the outer surface of the filter cartridge 1 , and water for the heating project can enter the filter cartridge 1 through the water inlet pipe 2 .

[0024] In addition, a water outlet pipe 3 is fixedly installed on the other side of the outer surface of the filter cartridge 1 , and the filtered water will be discharged through the water outlet pipe 3 .

[0025] A movable base 4 is provided on the outer bottom surface of the filter cartridge 1, and mounting rods 5 are fixedly installed on both sides of the outer surface of the movable base 4. Fixed sleeves 6 are fixedly installed on both sides of the outer surface of the filter cartridge 1. When the movable base 4 is inserted into the bottom of the filter cartridge 1, the mounting rods 5 will be inserted into the fixed sleeves 6.

[0026] A sewage pipe 7 is fixedly installed on the bottom surface of the movable base 4, and the filtered impurities will be discharged through the sewage pipe 7. An external pipe 8 is fixedly installed on one side of the outer surface of the filter cartridge 1. A filter net 401 is provided on the top surface of the movable base 4, and the filter net 401 can filter the water entering the filter cartridge 1.

[0027] An active cavity 501 is provided inside the mounting rod 5 , and a slide bar 502 is fixedly installed inside the active cavity 501 . Both sides of the outer surface of the slide bar 502 are movably connected to limit frames 503 , and the limit frames 503 can move along the slide bar 502 .

[0028] First springs 505 are fixedly installed on both sides of the movable cavity 501, and the two first springs 505 are both sleeved on the outer surface of the slide rod 502, and the two first springs 505 are fixedly connected to the two limit frames 503 respectively. When the limit frames 503 move, they will squeeze the first springs 505.

[0029] A driving plate 504 is fixedly installed on one side of the two limit frames 503, and a threaded rod 506 is movably connected to the outer top surface of the movable cavity 501, and a lifting plate 507 is movably connected to the bottom surface of the threaded rod 506, and the lifting plate 507 is in contact with the two driving plates 504. When the user rotates the threaded rod 506 and pushes the lifting plate 507 down, the two driving plates 504 can be pushed to move in opposite directions, thereby driving the two limit frames 503 to move to the outside of the movable cavity 501 to prevent the installation rod 5 from falling off from the fixing sleeve 6.

[0030] The top surface of the movable base 4 is provided with a mounting groove 402, and the bottom surface of the filter 401 is fixedly installed with a mounting plate 403. The outer surface of the mounting plate 403 and the inside of the mounting groove 402 are both provided with threads, so that the mounting plate 403 can be threadedly connected to the mounting groove 402, and then the filter 401 can be rotated to connect or separate the filter 401 and the movable base 4.

[0031] A lifting rod 101 is fixedly mounted on the outer top surface of the filter cartridge 1 , a baffle 103 is fixedly mounted on the top surface of the lifting rod 101 , a rack 102 is movably connected to the outer surface of the lifting rod 101 , and the rack 102 can be lifted and lowered along the lifting rod 101 .

[0032] Furthermore, a second spring 104 is fixedly connected between the rack 102 and the baffle 103 . When the rack 102 rises, the second spring 104 can be compressed.

[0033] A motor 105 is fixedly mounted on the outer top surface of the filter cartridge 1, and a sector gear 106 is fixedly mounted on the output end of the motor 105. The motor 105 can drive the sector gear 106 to rotate. When the rotating sector gear 106 is engaged with the rack 102, the rack 102 can be pushed to rise. As the sector gear 106 continues to rotate, when the sector gear 106 is not engaged with the rack 102, the rack 102 will descend under the action of the second spring 104.

[0034] A connecting rod 107 is fixedly mounted on one side of the rack 102, and a scraper ring 108 is provided on the bottom surface of the connecting rod 107. When the rack 102 is raised or lowered, the connecting rod 107 can be driven to be raised or lowered.

[0035] The external tube 8 extends into the interior of the filter cartridge 1, and a nozzle 801 is fixedly installed at one end of the external tube 8 extending into the interior of the filter cartridge 1. The external tube 8 can be connected to an external pipeline, so that the cleaning liquid enters the nozzle 801 through the external tube 8 and is sprayed onto the filter screen 401 through the nozzle 801 to clean the filter screen 401.

[0036] A connecting plate 1071 is fixedly installed on the bottom surface of the connecting rod 107, and a plurality of connecting holes 1072 are provided on the top surface of the connecting plate 1071. A connecting groove 1081 is provided on the top surface of the scraper ring 108, and a plurality of fixing holes 1082 are provided inside the connecting groove 1081. When the connecting plate 1071 is inserted into the connecting groove 1081, the plurality of connecting holes 1072 will overlap with the plurality of fixing holes 1082, and then the bolts are inserted to connect the connecting plate 1071 to the scraper ring 108.

[0037] The working principle of the utility model is as follows: water from the heating project will enter the filter cartridge 1 through the water inlet pipe 2, and the filter screen 401 can filter it, and the filtered water will be discharged through the water outlet pipe 3, and the motor 105 drives the fan gear 106 to rotate, so that the rack 102 drives the connecting rod 107 to rise and fall, so that the scraper ring 108 can clean the inner wall of the filter screen 401, and the external cleaning liquid can enter the nozzle 801 through the external pipe 8, and the nozzle 801 sprays it to the outer wall of the filter screen 401 to clean the filter screen 401. When the filter screen 401 needs to be replaced, the threaded rod 506 is rotated to drive the lifting plate 507 to rise, and then under the action of the first spring 505, the two limit frames 503 can be reset, and then the mounting rod 5 will fall off from the fixed sleeve 6, and the movable base 4 and the filter cartridge 1 can be cleaned. After the movable base 4 is disassembled, the filter screen 401 is rotated to be disassembled to replace the new filter screen 401.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A backwash filter for a heating project, comprising a filter cartridge (1), characterized in that: A water inlet pipe (2) is fixedly mounted on one side of the outer surface of the filter cartridge (1), and a water outlet pipe (3) is fixedly mounted on the other side of the outer surface of the filter cartridge (1); a movable base (4) is provided on the outer bottom surface of the filter cartridge (1); mounting rods (5) are fixedly mounted on both sides of the outer surface of the movable base (4); fixed sleeves (6) are fixedly mounted on both sides of the outer surface of the filter cartridge (1); a sewage pipe (7) is fixedly mounted on the bottom surface of the movable base (4); an external pipe (8) is fixedly mounted on one side of the outer surface of the filter cartridge (1); and a filter screen (401) is provided on the top surface of the movable base (4); The installation rod (5) is provided with an active cavity (501) inside, a sliding rod (502) is fixedly installed inside the active cavity (501), both sides of the outer surface of the sliding rod (502) are movably connected to the limiting frames (503), both sides of the inside of the active cavity (501) are fixedly installed with first springs (505), and the two first springs (505) are respectively fixedly connected to the two limiting frames (503), and one side of the two limiting frames (503) is fixedly installed with a driving plate (504), the outer top surface of the active cavity (501) is movably connected to the threaded rod (506), and the bottom surface of the threaded rod (506) is movably connected to the lifting plate (507); The top surface of the movable base (4) is provided with a mounting groove (402), and the bottom surface of the filter screen (401) is fixedly mounted with a mounting plate (403).

2. The backwash filter for heating engineering according to claim 1, characterized in that: The outer surface of the mounting plate (403) and the interior of the mounting groove (402) are both provided with threads.

3. The backwash filter for heating engineering according to claim 1, characterized in that: A lifting rod (101) is fixedly mounted on the outer top surface of the filter cartridge (1), a baffle (103) is fixedly mounted on the top surface of the lifting rod (101), a rack (102) is movably connected to the outer surface of the lifting rod (101), and a second spring (104) is fixedly connected between the rack (102) and the baffle (103), a motor (105) is fixedly mounted on the outer top surface of the filter cartridge (1), and a sector gear (106) is fixedly mounted on the output end of the motor (105), a connecting rod (107) is fixedly mounted on one side of the rack (102), and a scraper ring (108) is provided on the bottom surface of the connecting rod (107).

4. The backwash filter for heating engineering according to claim 1, characterized in that: The external pipe (8) extends into the interior of the filter cartridge (1), and a nozzle (801) is fixedly mounted on one end of the external pipe (8) extending into the interior of the filter cartridge (1).

5. The backwash filter for heating engineering according to claim 3, characterized in that: A connecting plate (1071) is fixedly mounted on the bottom surface of the connecting rod (107), and a plurality of connecting holes (1072) are provided on the top surface of the connecting plate (1071). A connecting groove (1081) is provided on the top surface of the scraper ring (108), and a plurality of fixing holes (1082) are provided inside the connecting groove (1081).

6. The backwash filter for heating engineering according to claim 5, characterized in that: The size of the connecting plate (1071) is the same as the size of the connecting groove (1081), and the size of the connecting hole (1072) is the same as the size of the fixing hole (1082).

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